The journalist kept a card file of information on his desk for easy reference.
新闻记者为方便参考，将资料的目录卡放在桌上。
Card file
原声例句
刘毅突破英文词汇3000
日常生活高频词汇
He journalist kept a card file of information on his desk for easy reference.
新闻记者为方便参考, 将资料的目录卡放在桌上.
英语百科
Index card
An index card (or system card in Australian English) consists of card stock (heavy paper) cut to a standard size, used for recording and storing small amounts of discrete data. It was invented by Carl Linnaeus, around 1760.
The most common size for index cards in North America and UK is 3 by 5 inches (76.2 by 127.0 mm), hence the common name 3-by-5 card. Other sizes widely available include 4 by 6 inches (101.6 by 152.4 mm), 5 by 8 inches (127.0 by 203.2 mm) and ISO-size A7 (74 by 105 mm or 2.9 by 4.1 in). Cards are available in blank, ruled and grid styles in a variety of colors. Special divider cards with protruding tabs and a variety of cases and trays to hold the cards are also sold by stationers and office product companies. They are part of standard stationery and office supplies all around the globe.
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